<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>单文件上传</title>
</head>
<body>
  <form action="file.php" method="post" enctype="multipart/form-data">
  	<input type="file" name="file">
  	<input type="submit" value="上传">

  </form>
</body>
</html>